Countess Slaine of Airgialla

Countess Slaine of Airgialla (14 October 1050-) was the wife of Earl Domnall of Airgialla. Slaine was from a lowborn Catholic Irish family in what is now County Londonderry, and she married into the nobility when she wed Domnall, a member of the House of O'Neill. In 1069, she was captured by the forces of Tyrconnell, led by the future King Einri of Eire, conquered Airgialla; the chivalrous Einri decided to release her from his prison after he took over Airgialla.